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Resistance to Fracture of Dental Roots Obturated with Different Materials

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591031.pdf (1.331Mb)
Date
2015
Author
Celikten, Berkan
Uzuntas, Ceren Feriha
Gulsahi, Kamran
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Abstract
The aim of this study was to compare the vertical fracture resistance of roots obturated with different root canal filling materials and sealers. Crowns of 55 extracted mandibular premolar teeth were removed to provide root lengths of 13mm. Five roots were saved as negative control group (canals unprepared and unfilled). Fifty root canals were instrumented and then five roots were saved as positive control group (canals prepared but unfilled). The remaining 45 roots were randomly divided into three experimental groups (n = 15 root/group) and obturated with the following procedures: in group 1, glass ionomer-based sealer and cone (ActiV GP obturation system); in group 2, bioceramic sealer and cone (EndoSequence BC obturation system); and in group 3, roots were filled with bioceramic sealer and cone (Smartpaste bio obturation system). All specimens were tested in a universal testing machine for measuring fracture resistance. For each root, the force at the time of fracture was recorded in Newtons. The statistical analysis was performed by using Kruskal-Wallis and post hoc test. There were no significant differences between the three experimental groups. The fracture values of three experimental and negative control groups were significantly higher than the positive control group. Within the limitations of this study, all materials increased the fracture resistance of instrumented roots.
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http://downloads.hindawi.com/journals/bmri/2015/591031.pdf
http://hdl.handle.net/11727/4352
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  • Diş Hekimliği Fakültesi / Faculty of Dentistry [225]
  • PubMed İndeksli Yayınlar Koleksiyonu [2443]
  • Scopus İndeksli Yayınlar Koleksiyonu [3127]
  • Wos İndeksli Yayınlar Koleksiyonu [4225]

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